Main Features: 1. SOS & APRS(Emergency button) 2. GPS Function 3. Display the users/calling/last caller information 4. Can receive dispatcher message 5. Support 4G/3G/2G M network 6. Support Group Call, P2P Call, Quick Call, Emergency Call 7. Large Capacity (3.63V 5200mAh) 8. Quick charger 3 hours fully charged Application: Security, Airport, Railway, Police Rescue Commercial use Construction, Industry, Army, Government, Outdoor adventure, Logistics Taxi Truck Camping, Travelling, Big shopping mall, Big Hotel, Outdoor Events, etc. Payment Method: Trade Assurance / Bank transfer / Western Union / Paypal / L/C